iOS购物分类模块的实现方案

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {  // Override point for customization after application launch.  self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];  // Override point for customization after application launch.  self.window.backgroundColor = [UIColor whiteColor];  [self.window makeKeyAndVisible];        Basetabarcontroller*base=[[Basetabarcontroller alloc]init];        self.window.rootViewController=base;        return YES;    }

@interface Basetabarcontroller : UITabBarController    @end

- (void)viewDidLoad {  [super viewDidLoad];  self.tabBar.tintColor = [UIColor redColor];  // self.tabBar.barTintColor = [UIColor blackColor];         ClassViewController*classList=[[ClassViewController alloc]init];  //classList.title=@"分类";            [self addChildViewController:classList title:@"分类" image:@""];       UIButton *menuBtn = [UIButton buttonWithType:UIButtonTypeCustom];  menuBtn.frame = CGRectMake(0, 0, 20, 18);  [menuBtn setBackgroundImage:[UIImage imageNamed:@"1.png"] forState:UIControlStateNormal];  [menuBtn addTarget:self action:@selector(openOrCloseLeftList) forControlEvents:UIControlEventTouchUpInside];  self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:menuBtn];  //self.tabBar.barTintColor = [UIColor redColor];}- (void)addChildViewController:(UIViewController *)childController title:(NSString *)title image:(NSString *)image{        UINavigationController *childVC = [[UINavigationController alloc]initWithRootViewController:childController];  childVC.tabBarItem.title = title;   childVC.tabBarItem.image = [UIImage imageNamed:image];  childVC.navigationBar.barTintColor = [UIColor whiteColor];         [self addChildViewController:childVC];          }

@interface ClassViewController : UIViewController   @end

- (void)viewDidLoad {  [super viewDidLoad];  // Do any additional setup after loading the view.          UIBarButtonItem *searchBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(searchBarButtonItemAction)];  self.navigationItem.rightBarButtonItem = searchBarButtonItem;    [self setdata];  [self setimage];  [self setdeatil];          _a=1;  _b=1;  _segement=[[UISegmentedControl alloc]initWithItems:@[@"攻略",@"详情"]];  _segement.frame=CGRectMake(90, 20, kwidth-180, 30);  _segement.tintColor=[UIColor blackColor];  _segement.selectedSegmentIndex=0;  [_segement addTarget:self action:@selector(changevalue:) forControlEvents:(UIControlEventValueChanged)];  self.navigationItem.titleView =_segement;   self.scrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, kwidth, KHeight)];  _scrollview.directionalLockEnabled=YES;  _scrollview.contentSize=CGSizeMake(kwidth*2, KHeight);  _scrollview.delegate=self;            [self.view addSubview:self.scrollview];  UICollectionViewFlowLayout*flow=[[UICollectionViewFlowLayout alloc]init];    //列距  flow.minimumInteritemSpacing=20;       //行距  flow.minimumLineSpacing=40;    //分区内边距  flow.sectionInset=UIEdgeInsetsMake(0, 20, 20, 20);    CGFloat totalwidth=self.view.frame.size.width;       CGFloat itemwidth=(totalwidth-2*20-3*20)/4.0;       CGFloat itemheight=itemwidth;       flow.itemSize=CGSizeMake(itemwidth, itemheight);       flow.headerReferenceSize=CGSizeMake(0, 40);       //滚动方向  flow.scrollDirection= UICollectionViewScrollDirectionVertical;  ;       //区头大小  flow.headerReferenceSize=CGSizeMake(0, 100);       _collection=[[UICollectionView alloc]initWithFrame:[UIScreen mainScreen].bounds collectionViewLayout:flow];  _collection.backgroundColor=[UIColor whiteColor];  _collection.tag=1;  _Srr=@[@"1",@"s",@"2",@"r"];  for (NSString*St in _Srr) {    [_collection registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:St];}  //设置 数据源 和代理  _collection.dataSource=self;  _collection.delegate=self;  [_collection registerClass:[ClassCollectionViewCell class] forCellWithReuseIdentifier:@"mycell"];  // _collection.backgroundColor=[UIColor yellowColor];  _collection.directionalLockEnabled=YES;       [self.scrollview addSubview:_collection];  UIView*view=[[UIView alloc]initWithFrame:CGRectMake(kwidth, 0, kwidth, 30)];  // view.backgroundColor = [UIColor whiteColor];  UIButton*label=[UIButton buttonWithType:(UIButtonTypeSystem)];  label.frame=CGRectMake(0, 20, 200, 14) ;  [label setTitle:@"选礼神器" forState:(UIControlStateNormal)];  [label addTarget:self action:@selector(xuan) forControlEvents:(UIControlEventTouchUpInside)];  [view addSubview:label];  [self.scrollview addSubview:view];

@interface LORequestManger : NSObject   + (void)POST:(NSString *)URL params:(NSDictionary * )params success:(void (^)(id response))success   failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error;      + (void)GET:(NSString *)URL  success:(void (^)(id response))success  failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error;   + (void)UPLOADIMAGE:(NSString *)URL       params:(NSDictionary *)params    uploadImage:(UIImage *)image      success:(void (^)(id response))success      failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error;   @end

#import "LORequestManger.h"#define serverUrl @"http://192.168.1.1:8080/jiekou"   @implementation LORequestManger         + (void)POST:(NSString *)URL params:(NSDictionary * )params success:(void (^)(id response))success   failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error{  // 创建请求管理者  AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];       // 请求超时时间     manager.requestSerializer.timeoutInterval = 30;  NSString *postStr = URL;  if (![URL hasPrefix:@"http"]) {           postStr = [NSString stringWithFormat:@"%@%@", serverUrl,URL] ;  }  NSMutableDictionary *dict = [params mutableCopy];            // 发送post请求  [manager POST:postStr parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {           // 请求成功    NSDictionary *responseDict = (NSDictionary *)responseObject;    success(responseDict);         } failure:^(AFHTTPRequestOperation *operation, NSError *error) {// 请求失败    Error( operation,error);         }];      }   + (void)GET:(NSString *)URL  success:(void (^)(id response))success  failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error{  // 获得请求管理者  AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] init];  manager.requestSerializer = [AFJSONRequestSerializer serializer];  [manager.requestSerializer setHTTPShouldHandleCookies:NO];  manager.requestSerializer.timeoutInterval = 30;  NSString *getStr = URL;//  NSLog(@"getStr======%@",getStr);  if (![URL hasPrefix:@"http"]) {           getStr = [NSString stringWithFormat:@"%@%@", serverUrl,URL] ;  }          // 发送GET请求  [manager GET:getStr parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {//    NSLog(@"getStr------------%@",getStr);    NSDictionary *responseDict = (NSDictionary *)responseObject;            success(responseDict);            } failure:^(AFHTTPRequestOperation *operation, NSError *error) {    if (!operation.responseObject) {      NSLog(@"网络错误");    }    Error( operation,error);  }];        }   + (void)UPLOADIMAGE:(NSString *)URL       params:(NSDictionary *)params    uploadImage:(UIImage *)image      success:(void (^)(id response))success      failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error{  // 创建请求管理者  AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];       manager.requestSerializer = [AFJSONRequestSerializer serializer];  manager.responseSerializer = [AFJSONResponseSerializer serializer];  manager.requestSerializer.timeoutInterval = 30;  //  [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];  //  //  [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"];       NSString *postStr = [NSString stringWithFormat:@"%@%@", serverUrl,URL] ;  NSMutableDictionary *dict = [params mutableCopy];     [manager POST:postStr parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {    NSData *imageData = UIImageJPEGRepresentation(image, 0.1);    [formData appendPartWithFileData:imageData name:@"img" fileName:@"head.jpg" mimeType:@"image/jpeg"];         } success:^(AFHTTPRequestOperation *operation, id responseObject) {       NSDictionary *responseDict = (NSDictionary *)responseObject;        success(responseDict);      } failure:^(AFHTTPRequestOperation *operation, NSError *error) {    Error( operation,error);         }];         }